Cross-Shaped Dodger Spreader Reduces Drag

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Solution Overview

Problem

Conventional fishing equipment rigs with dodgers connected to the fishing line increase drag and make it difficult to reel in fish, as the dodgers can assist the fish in escaping and tangle with the line, reducing the effectiveness of the attractants' proximity to the lure.

Innovation Solution

A fish attractant spreader device featuring a center bar and a non-parallel spreader bar forming a cross shape, with eyelets and a release clip, allows for the attachment of dodgers without connecting them to the fishing line, ensuring they remain attached to the downrigger line during a fish strike, reducing drag and tangling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If dodgers are connected in-line to the fishing line upstream of the lure, then the dodgers can attract fish to the lure, but the dodgers increase drag and make it more difficult to reel in the fish

Engineering Contradiction:
Improvefish attraction effectivenessVSAvoidreeling in difficulty
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The device separates the dodger attachment from the fishing line by introducing an independent spreader bar structure. Dodgers are attached to the spreader bar which is connected to the downrigger line, not the fishing line itself. This segmentation allows the dodgers to remain in position for fish attraction while being excluded from the fishing line during reeling operations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The dodgers are extracted from the fishing line system and placed on a separate spreader bar structure. This extraction removes the harmful drag effect from the fishing line while preserving the attractant function. The release clip mechanism allows the fishing line to be temporarily attached to the spreader bar structure for deployment but automatically disconnects during fish striking and reeling.

Inventive Principle:
Principle #2Taking out (Extraction)

2Object-generated harmful factors

If the dummy dodger line is spaced far away from the fishing line to avoid tangling, then tangling is reduced, but the dodgers become less effective at guiding fish to the lure

Engineering Contradiction:
ImprovetanglingVSAvoidfish guidance effectiveness
Core Design Contradiction:
Object-generated harmful factorsVSReliability

Solution Approach 1:

The device transitions from a linear arrangement (dummy dodger line parallel to fishing line) to a spatial cross-shaped arrangement. The spreader bar extends perpendicular to the fishing line direction, positioning dodgers in a different dimensional plane. This allows the dodgers to be in close proximity to the lure for effective fish guidance while naturally preventing line tangling through spatial separation.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Reliability

If a dodger is connected in-line on the fishing line to ensure close proximity to the lure, then fish attraction is improved, but the dodger can assist the fish to escape and increase drag

Engineering Contradiction:
Improvedodger proximity to lureVSAvoiddrag and escape assistance
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The spreader bar acts as an intermediary structure between the downrigger line and the dodgers. This intermediary allows the dodgers to be positioned close to the lure for effective attraction while preventing direct connection to the fishing line. The release clip serves as a temporary mediator that connects the fishing line to the spreader bar structure only during deployment, then automatically disconnects to eliminate drag during fishing operations.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS11576360B2Dodger and other fish attractant spreader device for use while trolling
Publication Date: 2023.02.14 SOLLITT GLENN RALSTON
  • US11576360B2 patent drawing
  • US11576360B2 patent drawing
  • US11576360B2 patent drawing

AI summary

A fish attractant spreader device includes a center bar running lengthwise from a back end to a front end and a spreader bar attached to the center bar and extending lengthwise non-parallel with the center bar. The device includes a front line attachment at the front of the center bar, a back line attachment at the back of the center bar, and at least one fish attractant attachment on the spreader bar. A fish attractant such as a dodger or flasher may be attached to the attractant attachment on the spreader bar. A release clip may be attached to the back line attachment of the center bar for providing temporary attachment to a fishing line and a downrigger stacker clip may be connected to the front line attachment of the center bar for attachment to a downrigger line. The spreader bar and the center bar may form a cross shape.